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公开(公告)号：US4568149B1
公开(公告)日：1995-12-12
申请号：US57182684
申请日：1984-01-19
Applicant: CANON KK
Inventor： SUGATA MASAO , MIYAJIMA YUKO
IPC: G02F1/133 , G02F1/1333 , G02F1/1339 , G02F1/1362 , G02F1/1368 , G09F9/00 , G02F1/1343 , G02F1/1335
CPC classification number: G02F1/1368 , G02F1/13392 , G02F1/13394 , G02F1/136209
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2.发明授权公开(公告)号：US4568149C1
公开(公告)日：2002-04-09
申请号：US57182684
申请日：1984-01-19
Applicant: CANON KK
Inventor： SUGATA MASAO , MIYAJIMA YUKO
IPC: G02F1/133 , G02F1/1333 , G02F1/1339 , G02F1/1362 , G02F1/1368 , G09F9/00 , G02F1/13
CPC classification number: G02F1/1368 , G02F1/13392 , G02F1/13394 , G02F1/136209
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